<!doctype html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title></title> 
</head>
<body>
<script type="text/javascript">


function show(){
	//alert(1);
	alert(this);
	return;
	ashdkahsdj

	asdjkad
}

alert(show.call(1))
//show.call(window);
/*
function show(){
	this.a = 20;
	this.c = 25;
}
function show2(){
	//show3 - >
	this.a = 25;
	this.c = 30;
	show.call(this);
	//this.a = 20;
	//this.c = 25;
};
function show3(){
	show2.call(this);
	//this.a = 20;
	//this.c = 25;
	
}
alert(new show3().a + new show3().c);
*/
//45 55;


</script>
</body>
</html>